On freeze-out problem in relativistic hydrodynamics
Nuclear Theory
2009-08-05 v2 High Energy Physics - Phenomenology
Abstract
A finite unbound system which is equilibrium in one reference frame is in general nonequilibrium in another frame. This is a consequence of the relative character of the time synchronization in the relativistic physics. This puzzle was a prime motivation of the Cooper--Frye approach to the freeze-out in relativistic hydrodynamics. Solution of the puzzle reveals that the Cooper--Frye recipe is far not a unique phenomenological method that meets requirements of energy-momentum conservation. Alternative freeze-out recipes are considered and discussed.
Keywords
Cite
@article{arxiv.0810.2262,
title = {On freeze-out problem in relativistic hydrodynamics},
author = {Yu. B. Ivanov and V. N. Russkikh},
journal= {arXiv preprint arXiv:0810.2262},
year = {2009}
}
Comments
6 pages, 2 figures, references are corrected and updated, to be published in the issue of Phys. Atom. Nucl. dedicated to S.T. Belyaev on the occasion of his birthday